Hoist



Sept 19, 1944- M. M. LUCAS I 2,358,339

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Wx' l N l R lbI%-l+ .I'I' I 1w/for l /Va//f/r N. lucas Sept. 19, 1944; M. M. LUCAS HOIST 2 shees-sheet 2 Filed Sept. 21, 1943 40:12am. #may lfm@ Patented Sept. 19, 1944 UNITED STATES PATENT OFFICE HOIST Moulton M. Lucas, North Dartmouth, Mass.

Application September 21, 1943, Serial No. 503,249

1 Claim.

The present invention relates to new and useful improvements in hoists, and has for its primary object to provide, in a manner as hereinafter set forth, a device of this character comprising a novel construction and arrangement, whereby engines and transmissions may be expeditiously lifted out of motor vehicles and moved from place to place with a minimum of effort.

Other objects of the invention are to provide a hoist of the aforementioned character which will be comparatively simple in construction, strong, durable, highly elcient and reliable in use, compact, and which may be manufactured at low cost.

All of the foregoing, and still further objects and advantages of the invention will become apparent from a study of the following specification,.taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figure 1 is a top plan view of a hoist constructed in accordance with thepresent invention.

Figure 2 is a View in side elevation thereof.

Figure 3 is a fragmentary view in cross-section, taken substantially on the line 3--3 of Figure 2.

Referring now to the drawings in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a base structure which is designated generally by reference character I. In the embodiment shown, the base I includes a pair of spaced, parallel beams 2 of channel iron which are mounted on casters 3. A platform 4 in the ,form of a metallic plate is secured on one end portion of the beams 2.

Mounted on Vthe beams 2 at an intermediate point and rising therefrom is a pair of channel iron posts or uprights 5. Channel iron braces 6 extend between the posts 5 and the rear end portions of the beams 2. The structure is further stiifened by an inclined metallic brace 1 extending between the posts 5.

As illustrated to advantage in Figure 3 of the drawings, aligned brackets or arms 8 in the form of I beams are mounted on the upper portions of the posts 5 and extend inwardly therefrom. The inner ends of the brackets 8 are sp-aced from each other. Braces 9 are provided for the brackets 8. Mounted on the adjacent end portions of the brackets 8 is a shaft I0. A vertically swinging boom II in the form of an I beam is mounted at an intermediate point on the shaft I0. Eye bolts I2 are mounted beneath the end portions of the boom II. A hoisting chain I3 is connected to the eye bolt I2 at the front end of boom II.

Journaled in suitable 'bearings I4 which are provided therefor on the posts 5 is a shaft I5. Journaled between the rear end portions of the beams 2 is a roller I6. A cable or the like I1 is trained under the roller I6 and has one end connected to the eye bolt I2. The other end of the cable I'I is secured to the shaft I5 for winding thereon. A hand crank I8 on one of the posts 5 is operatively connected to the shaft I5 by gears I9. A dog 20 is engageable with one of the gears I9 for releasably securing the shaftV I5 against retrograde rotation.

It is thought that the operation of the device will be readily apparent from a consideration of the foregoing. Briefly, the hoist is moved on the casters 3 to a point adjacent the vehicle with the boom II projecting thereover or thereinto. The forward end of the boom II is then swung downwardly and the chain I3 is secured to the engine or transmission t0 be removed. The shaft I5 is then actuated through the medium of the hand crank I8 for winding the cable II on said shaft, thus swinging the forward end of the boom II upwardly forelevating the engine or transmission. When the engine or transmission has been lifted sufficiently to Clear the vehicle, the hoist, with said engine or transmission suspended from the boom II, is moved to any desired location on the casters 3. Of course, the apparatus may also be used for replacing the engine or transmission.

It is believedV that the many advantages of a hoist yconstructed in accordance with the present invention willY be readily understood, and although a preferred embodiment of the device is as illustrated and described, it is to be underf stood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

A hoist of the character described comprising a base including a pair of spaced, parallel beams, casters mounted beneath said beams, a platform mounted on one end portion of the beams, a roller journaled between the other end portions of said beams, a pair of posts rising from the beams at intermediate points in said beams, braces extending between the posts and said other end portions of the beams, a brace exportion of the boom, the other end of said cable Ibeing extended upwardly and forwardly from the roller and secured to the shaft for winding thereon, and a hand crank on one of the posts operatively connected to the shaft for actuating same for winding the cable thereon for swinging the boom in a direction to elevate the load.

MOUL'ION M. LUCAS. 

